Page 59 - Visual Guidance Handbook

Let’s all
SUPPORTED EXCAVATIONS get home safely,
every day

Components Components Installation and excavation

E F

4 5 6
1 Excavate to max 1.0m below Lower Base into excavation and release chains.
ground level (site conditions Note: Box can also be lifted into position via tower or mobile
crane if available.
permitting).
G H
2
7 8
1 Top 5 Strut Pocket Connection
3 2 Base 6 Lifting/Extraction Point
3 Strut 7 Connector Pin and R-Clip Dig and push Base to Base depth advancing in Lower Top onto Base and
4 Telescopic StrutConnection 8 Top to Base Fork Connection maximum 300mm increments by pushing each connect together to form
panel down using excavator bucket avoiding single box ensuring all 4top
Construction damage to lifting points or panel. Note: additional to base connection points
are fully secured.
trench sheets to be applied to open sections ofbox if battered ends
cannot be maintained.
I J

A B C D
Assemble by laying Telescopic struts Second panel lowered Box lifted into vertical Dig and push assembled box to required depth. Endsafe panels or trench
panels flat using MGF adjusted to required onto struts and locked position for use. If additional top is required repeat steps H to I. sheet can be used in lieu
4-leg chains provided. width and locked into into position before On reaching final depth batter back open ends. of a batter.
.
position within panel releasing chains. Note: a) fall restraint system to beused
pockets using pins and Install MGF ladder and edge protection. to install handrails(anchorage to be
detailed within rams).
retaining clips provided. b) temporarybarrier protectionto either
end.

Page 59